Home / 12,095.56-18,138.42-3,772.78

Finding the Fourth Proportional to 12,095.56, 18,138.42 and 3,772.78

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Solution

The fourth proportional to 12,095.56, 18,138.42 and 3,772.78 is: 5,657.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,095.56 : 18,138.42 = 3,772.78 : x
  2. Step 2: Convert to fraction form
    12,095.56/18,138.42 = 3,772.78/x
  3. Step 3: Cross multiply
    12,095.56x = 18,138.42 × 3,772.78
  4. Step 4: Simplify right side
    12,095.56x = 68,432,268.21
  5. Step 5: Solve for x
    x = 68,432,268.21/12,095.56
  6. Step 6: Final answer
    x = 5,657.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.